FOR YOURSELFBuild on what
Build on what
you know.
Learn something new or revisit a skill for work, study or everyday life.
Brain Gains.
Proof Remains.
Learn it. Refresh it. Put it to use.
Interactive learning · Tests · Study tools
C8T is a gamified educational platform with interactive lessons, practice and tests. Build a skill, earn XP and follow your progress across 9 subjects.
Helping with homework? Start by refreshing your own knowledge.
TRY IT HEREMaths · Function machine
One rule.
Your turn to try it.
Double the input, then add 3. What is the output?
YOUR INPUT4
THE RULE× 2 + 3
THE OUTPUT11
01
MULTIPLY FIRST
024 × 2 = 8
THEN ADD
8 + 3 = 11
An input of 4 becomes 8 after doubling. Adding 3 gives you 11.
ROOM FOR YOUR NEXT IDEA9subjects111topics629skillsBUILT FOR CURIOSITY
START WITH YOUR REASON
What do you need
to understand?
For work, homework or your own curiosity.
FOR PARENTS · AVAILABLE NOWRemember it yourself.
Remember it yourself.
Help them understand it.
Follow an example and check your understanding before helping with homework.
Child assessments are in development. See the plan.
FOR THE CURIOUSA spark for
A spark for
curious minds.
Explore a subject you’ve always wondered about, discover less familiar topics and follow the ideas that interest you.
FOLLOW THE QUESTION
Where would you
like to begin?
Choose a subject, browse its topics and pick a skill to explore.
9 subjects available
Maths
Numbers, patterns, shapes and the reasoning that connects them.
15 topics · 75 skills
Coding
Programming concepts, logical steps and how code works.
20 topics · 100 skills
Psychology
Explore behaviour, thought and the study of the mind.
12 topics · 60 skills
Biology
Living things, their systems and their relationships.
10 topics · 101 skills
Chemistry
Elements, substances and the changes between them.
12 topics · 70 skills
Physics
Motion, energy, forces and the rules behind them.
12 topics · 63 skills
History
People, events and the evidence we use to understand the past.
10 topics · 50 skills
Geography
Places, environments and how people shape the world.
10 topics · 50 skills
Language & Communication
Meaning, expression and the skills that help us understand each other.
10 topics · 60 skills
No subjects match. Try another word or clear your search.
9 published subjects · 111 topics · 629 skills Choose a topic and a skill. Your progress stays with your C8T account.Browse all topics and skills
LEARNING THAT YOU CAN WORK WITH
Change the example.
Understand the rule.
Adjust values, arrange steps and explore relationships. Follow the reasoning as you go.
Try the example aboveChoose a skill and a starting point.
Browse a subject, find a topic and choose your difficulty. Focus on what you want to learn or revisit.
Explore what makes it work.
Follow worked steps, adjust values or rearrange an example. See how the result changes and which relationships still hold.
Check your understanding.
Try practice questions and review the explanation. In Learning, you can retry before continuing.
AFTER A TESTExample review
FUNCTION MACHINESMultiply 6 by 2,
Multiply 6 by 2,
then add 3.
YOUR ANSWER10
CORRECT ANSWER15
6 × 2 = 12
12 + 3 = 15
Follow the two operations in order.
TEST. REVIEW. RETURN.
Know what to
practise next.
A test shows you where to look next. Review your answers, follow the explanation and return to the skills that need more practice.
- Choose the skill and challenge you want to take on.
- Answer independently, then review the reasons.
- Use your results to guide what you practise next.
Learning gives feedback as you go. Tests let you review after you finish.
REASONS TO COME BACK
Build a little
more each time.
Follow each skill through 15 levels across easy, medium and hard. Use your skill tracker to see where you stand and choose what to work on next.
Milestones worth noticing.
Earn badges and achievements as you progress. XP rewards encourage you to move towards harder challenges as your skill level grows.
A shared sense of progress.
See where you stand on the leaderboards and meet other learners in the C8T Discord community. In-app chat posting unlocks with a qualifying streak and an eligible subscription.
BUILT-IN STUDY TOOLS
Keep your place.
Find what you need.
Check a calculation, look up an element or put an era in context. Open useful tools over your learning screen, then get back to the idea you were exploring.
Five tools already built into C8T, with more on the way.
PHYSICS FORMULAS
v = d / t
The formula, with its meaning.
Find 19 physics formulas with their variables, units and examples of where they are used.
Distance metresTime secondsSpeed m/s
A look inside the toolkit. Open the tools in C8T to explore them.
MAKE TIME FOR YOUR NEXT IDEA
Start free.
Make more time.
Explore the published subjects with learning, tests and study tools on either plan.
Included on Free and Individual
Interactive learningExplore examples and practise individual skills.
Tests and answer reviewsCheck your understanding and follow explanations.
Study toolsFormulas, elements, maps, timeline and calculator.
Your own progressSkills tracker, test history, notes and to-do.
Story Mode and child assessments are in development. See what’s planned.
Learning together? Family, Friends & Teams 
Separate logins, private group chat and shared progress. Family adds parent-created logins; Teams adds group managers.
| Plan | Members | Per member / month | Minimum total / month | Plan page |
|---|---|---|---|---|
| Family | 2–5 | £9 | £18 | View Family |
| Friends | 10–30 | £9 | £90 | View Friends |
| Teams | 20–50 | £25 | £500 | View Teams |
The account holder counts as a member. Final options and terms are shown in C8T before purchase.
BEHIND C8T
It started with
a familiar frustration.
Learning on your own can mean searching across websites, videos and tools to piece together one explanation.
C8T brings learning and useful tools into one place, where you can try an idea, change something and see why it works.
Explore the story behind C8T ↗
Our own engine. Built for learning.
Built from the ground up, C8T’s engine connects activities, feedback and progression across subjects, keeping the experience consistent as you learn.
Why we built itCOMING SOON IN v0
See where your child
needs a little help.
Refresh your own knowledge today. Soon, check theirs too.
IN DEVELOPMENT · PLANNED FOR v0
Planned for grades 1 to 12: check understanding and find what to practise next.
Target: 13 to 20 November 2026
An aim, not a confirmed release date. Timing may change.
Not available yet. Planned for v0, C8T’s beta stage.
STORY MODE · UPCOMING
Different worlds.
A shared story on Earth.
Meet guides from different subject worlds. Explore their stories and put ideas into practice through quests on Earth.
IN DEVELOPMENT
Planned for a later release.
Not included in the public-beta launch.
Explore the worlds, characters and story concept
A GLIMPSE OF CANUAL’S WORLDTessuneMathematics with Canual
A QUEST FROM THE CURRENT PROTOTYPE
The observatory needs supplies.
The travellers do too.
In this prototype scene on Tessune’s icy causeway, Canual has eight equal supply crates and two destinations. The observatory needs one quarter. The rest must stay for the travellers.
With Canual’s guidance, you choose what goes aboard. Two crates leave on the carriage, six remain, and the journey can continue.
The scene shows how a character’s explanation becomes something you can put into practice. You work through the idea, make a choice and see its result in the story.
THE SUBJECTFractionsYOUR PARTLearn with Canual. Put the idea to use.
Each subject has a world behind it.
The planets give separate subjects their own identities. Their characters carry the knowledge and history of those worlds, giving you a guide to each area of learning.
Earth brings them together.
The characters come to Earth to help humans understand what they know. Here, subjects that seem separate can reveal shared structures, rules and ways of thinking.
The characters guide. You take part.
You are the human player. Listen to their stories, work through their explanations and put what you learn into practice through quests. Their knowledge becomes something you can use.
Meet a few of your future companions.
A growing cast across C8T’s subject universe. Start with these three.
MATHEMATICS · TESSUNE
Canual
Find the pattern. Work through the steps. Put a careful calculation to use.
CODING & PROGRAMMING · RECURSA
Jafuno
Turn an idea into instructions, then discover what makes the system work.
BIOLOGY · VIRETH
Huance
Look closely at living things and the relationships that connect them.
MORE WORLDS TO DISCOVER
A few subjects on the horizon.
Meet four more guides from C8T’s planned subject universe. These subjects and their stories are still in development.
UPCOMING SUBJECT
Arts
with Aqende
Notice the form. Explore the idea. Create something of your own.
UPCOMING SUBJECT
Archaeology
with Epnuar
Read the traces people left behind. Piece together what they reveal.
UPCOMING SUBJECT
Music
with Sypere
Hear the patterns. Explore how rhythm and sound shape an idea.
UPCOMING SUBJECT
Biomechanics
with Tefomu
Where living movement meets forces, balance and structure.
A preview of what is being built. These subjects are separate from the current published learning catalogue.
A look at Story Mode in development. Character names, subject connections and planets are established. Artwork is being refined and playable stories are still being built.
A FEW THINGS TO KNOW
Before you begin.
Can I use C8T to help my child now?
Yes. Use Learning and Tests to refresh your own understanding before helping with homework. Dedicated child assessments are still in development. See the plan.
Is C8T suitable for adults returning to learning?
Yes. Revisit an individual skill and choose your difficulty. You do not need to restart a whole subject.
What is the difference between Learning and Tests?
Learning gives feedback as you explore. Tests let you answer independently, then review your results and explanations.
What makes the learning interactive?
Adjust values, arrange steps, sort information or try a worked example. Feedback explains the result.
What subjects are available?
The current published catalogue covers Maths, Coding, Psychology, Biology, Chemistry, Physics, History, Geography, and Language & Communication. Further subjects are in development.
Is Story Mode available in this release?
Not yet. Story Mode is planned for a later release. Explore the preview.
How do streaks and chat access work?
A streak day requires 60 minutes of tracked use. A current seven-day streak unlocks in-app chat posting for eligible subscribers. Signed-in members can read the chat before they qualify to post.
How much does C8T cost?
Free includes 60 minutes per rolling 24 hours. Individual starts at £10 per month before longer-period discounts. Group plans have per-member prices. Compare plans.
UNDERSTAND. REFRESH. PREPARE.